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Williams College

Academic institutionnorthamerica · us
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Research library12linked papers
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Selected work

Representative Papers

A Pilot Study of Autocompleting Tokenizers

Aug 15, 2026

This study addresses the computational bottlenecks and performance degradation caused by verbose sequences in byte-level tokenization. We propose a lightweight autoregressive input compression mechanism based on context prediction, which achieves implicit information representation by removing predictable bytes. This approach significantly shortens effective sequence lengths while preserving translation quality. Experiments demonstrate that English-French translation sequences are reduced by nearly one-third without performance loss, while multilingual tasks achieve compression rates of 0.47–0.67 with maintained or improved translation quality. By effectively reducing the computational overhead of byte-level models, this work substantially enhances efficiency in multilingual machine translation.

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Probe-and-Refine Tuning of Repository Guidance for Coding Agents

Jun 18, 2026

This work addresses the limitation of current large language model–based coding agents, which struggle to effectively leverage static guidance files—such as AGENTS.md—due to insufficient understanding of high-level repository structure, sometimes even suffering performance degradation. The authors propose a lightweight iterative refinement approach that requires neither agent loops nor external tool calls: it diagnoses issues via synthetic defect-repair probes and progressively refines the guidance file through a single large model invocation per iteration. This study reveals, for the first time, that the generation strategy of guidance files is a critical factor influencing agent performance. Without modifying the underlying model, the method substantially improves repair coverage. On the SWE-bench Verified benchmark, four independent runs using Qwen3.5-35B-A3B achieve an average repair rate of 33.0%, significantly outperforming both a static knowledge base (28.3%) and a no-guidance baseline (25.5%), primarily due to a 14.5-percentage-point increase in coverage.

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Recent publications

Latest Papers

A Pilot Study of Autocompleting Tokenizers

Aug 15, 2026

This study addresses the computational bottlenecks and performance degradation caused by verbose sequences in byte-level tokenization. We propose a lightweight autoregressive input compression mechanism based on context prediction, which achieves implicit information representation by removing predictable bytes. This approach significantly shortens effective sequence lengths while preserving translation quality. Experiments demonstrate that English-French translation sequences are reduced by nearly one-third without performance loss, while multilingual tasks achieve compression rates of 0.47–0.67 with maintained or improved translation quality. By effectively reducing the computational overhead of byte-level models, this work substantially enhances efficiency in multilingual machine translation.

0 citationsRead paper

Probe-and-Refine Tuning of Repository Guidance for Coding Agents

Jun 18, 2026

This work addresses the limitation of current large language model–based coding agents, which struggle to effectively leverage static guidance files—such as AGENTS.md—due to insufficient understanding of high-level repository structure, sometimes even suffering performance degradation. The authors propose a lightweight iterative refinement approach that requires neither agent loops nor external tool calls: it diagnoses issues via synthetic defect-repair probes and progressively refines the guidance file through a single large model invocation per iteration. This study reveals, for the first time, that the generation strategy of guidance files is a critical factor influencing agent performance. Without modifying the underlying model, the method substantially improves repair coverage. On the SWE-bench Verified benchmark, four independent runs using Qwen3.5-35B-A3B achieve an average repair rate of 33.0%, significantly outperforming both a static knowledge base (28.3%) and a no-guidance baseline (25.5%), primarily due to a 14.5-percentage-point increase in coverage.

0 citationsRead paper